CN103956669A - Ground wire special for middle switch cabinet - Google Patents
Ground wire special for middle switch cabinet Download PDFInfo
- Publication number
- CN103956669A CN103956669A CN201410125507.XA CN201410125507A CN103956669A CN 103956669 A CN103956669 A CN 103956669A CN 201410125507 A CN201410125507 A CN 201410125507A CN 103956669 A CN103956669 A CN 103956669A
- Authority
- CN
- China
- Prior art keywords
- cylindrical aluminum
- switch cabinet
- ground
- ground wire
- middle switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- 230000000875 corresponding Effects 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 25
- 238000002788 crimping Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 230000003068 static Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000004418 Durio kutejensis Nutrition 0.000 description 1
- 210000001503 Joints Anatomy 0.000 description 1
- 235000010599 Verbascum thapsus Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The invention relates to the technical field of power grid operation devices, in particular to a ground wire special for a middle switch cabinet. The ground wire special for the middle switch cabinet is composed of a ground wire clamp, a ground annealed copper wire, an insulating operating bar and a metal head, wherein the cylindrical aluminum metal head is arranged on the top of the insulating operating bar, the insulating operating bar is connected to the cylindrical aluminum metal head in a compact pressing mode, two rows of contact holes which are corresponding in position are annularly and evenly formed in the cylindrical aluminum metal head, elastic metal ball contacts are arranged in the contact holes, a fixing hole is formed between every two adjacent contact holes of each row, protrusions corresponding to the fixing holes are arranged in a lower static contact in the middle switch cabinet, a pressing connection position connected with the ground annealed copper wire is arranged at the bottom of the cylindrical aluminum metal head, the ground terminal of the ground wire special for the middle switch cabinet is connected with the ground wire clamp, and an electricity connection terminal is connected to the cylindrical aluminum metal head through the ground annealed copper wire. Compared with a fixed type ground wire, the ground wire special for the middle switch cabinet has the advantages of being more convenient to use, clearer in grounding point and higher in safety reliability.
Description
Technical field
The present invention relates to operation of power networks equipment technical field, be specifically related to a kind of central switch cabinet Special grounding wire.
Background technology
In prior art, when circuit hanging earthing conductor, shrouding behind central switch cabinet cable vault need to be pulled down, with electrical verification rod, the exposed part of branch bar in cabinet be carried out to electrical verification, identify really after no-voltage, direct hanging earthing conductor in cable vault after feeder cabinet.
In the operating process of above-mentioned circuit hanging earthing conductor, have potential safety hazard, when outlet switch cabinet hidden danger of more times is larger, maximum potential safety hazard is gone to the wrong way interval exactly, and this can divide following two kinds of situations:
A kind of is to go to after the cabinet of another switch cubicle moving because between the cable vault's shrouding after switch cubicle and handcart without any locking device, only the screw of rear shrouding need be outwarded winding and can be opened, slightly do not note just having the danger of electric shock;
A kind of is to go to after the cabinet of another switch cubicle that is in stand-by state, open shrouding behind cable vault, experience torch is identified without after electricity, hang up earth connection, this has just caused not hanging ground-wire of this switch cubicle that turns maintenance, and switch cubicle that should not hanging earthing conductor has hung up earth connection, this just likely causes line with ground to close disconnecting link, and consequence is quite serious.
In addition, after central switch cabinet, in cable vault during hanging earthing conductor, operations staff need to get into cabinet internal wiring trackside, during this operating cost, requires great effort again.
According to the version of 10kV, 35kV middle-placed switch cabinet, cause the analysis of some problems that run in the practical operation of power transformation O&M, in the situation that not violating < < safety > >, develop central switch cabinet Special grounding wire of the present invention, improve person on duty's operating process, solve present situation more loaded down with trivial details for middle-placed switch cabinet electrical verification ground connection and the larger potential safety hazard of existence.
Summary of the invention
The invention provides the higher central switch cabinet Special grounding wire of a kind of Geng Fang of use Bian ﹑ earth point Geng Ming Que ﹑ security reliability.
Central switch cabinet Special grounding wire of the present invention is by earthing clamp, ground connection annealed copper wire, insulating bar and ferrule form, insulating bar top arranges cylindrical aluminum ferrule, insulating bar is closely crimped in cylindrical aluminum ferrule, cylindrical aluminum ferrule annular is uniform to be arranged two rankings and puts corresponding contact holes, contact holes inside arranges elastic metallic spherical contact, between two contact holes of each row, it is fixing hole, the inner setting of the lower fixed contact projection corresponding with fixing hole in central switch cabinet, cylindrical aluminum ferrule bottom arranges crimping place being connected with ground connection annealed copper wire, this Special grounding wire earth terminal is connected with earthing clamp, power connection end is connected in cylindrical aluminum ferrule by ground connection annealed copper wire.
Described cylindrical aluminum ferrule size adapts with the inner lower fixed contact size arranging of central switch cabinet.Cylindrical aluminum ferrule size is advisable just to insert in lower fixed contact.When cylindrical aluminum ferrule is inserted, projection can be combined together with fixing hole, plays fixation.
Insulating bar is closely crimped in ferrule, and its material is processed by the splendid raw material such as epoxy resin of insulation property, meets the length requirement (being greater than 0.7m) that High-Voltage Insulation and safety require, and guarantees operator safety.
During work, under car switch, fixed contact side is connected with line side, to lower fixed contact side joint can complete the ground connection to line side.
Car switch is pulled out after cabinet, and lower fixed contact side electrical verification in cabinet, after the true no-voltage of electrical verification, is used the present invention, first earth terminal wire clamp is fixed, and hand-held insulating bar pushes power connection end in lower fixed contact, can easily complete three-phase ground.
The invention has the beneficial effects as follows:
Compare with fixed earth connection, the present invention uses Geng Fang Bian ﹑ earth point Geng Ming Que ﹑ security reliability higher, when electric equipment and power circuit power failure Jian Xiu ﹑ inspection, can prevent the attack of unexpected Lai electricity ﹑ induced electricity and residual charge, guarantee the life security of operating personnel on equipment.Electrical verification point, earth point, in cabinet front side, can effectively prevent mistakenly entering charged chamber; Cylindrical aluminum ferrule contact area is large, and ground connection is better; Use insulating bar to carry out ground connection, operate safer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the present invention uses view;
In figure: 1, cylindrical aluminum ferrule; 2, contact holes; 3, fixing hole; 4, crimping place; 5, ground connection annealed copper wire; 6, earthing clamp; 7, insulating bar; 8, elastic metallic spherical contact; 9, lower fixed contact.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
As shown in Figure 1-2, central switch cabinet Special grounding wire of the present invention is by earthing clamp 6, ground connection annealed copper wire 5, insulating bar 7 and ferrule form, insulating bar 7 tops arrange cylindrical aluminum ferrule 1, insulating bar 7 is closely crimped in cylindrical aluminum ferrule 1, cylindrical aluminum ferrule 1 annular is uniform to be arranged two rankings and puts corresponding contact holes 2, contact holes 2 inside arrange elastic metallic spherical contact 8, between two contact holes 2 of each row, it is fixing hole 3, the inner setting of lower fixed contact 9 projection corresponding with fixing hole 3 in central switch cabinet, cylindrical aluminum ferrule 1 bottom arranges crimping place 4 being connected with ground connection annealed copper wire 5, this Special grounding wire earth terminal is connected with earthing clamp 6, power connection end is connected in cylindrical aluminum ferrule 1 by ground connection annealed copper wire 5.
Described cylindrical aluminum ferrule 1 size adapts with inner lower fixed contact 9 sizes that arrange of central switch cabinet.Cylindrical aluminum ferrule 1 size is advisable just to insert in lower fixed contact 9.When cylindrical aluminum ferrule 1 is inserted, projection can be combined together with fixing hole 3, plays fixation.
Insulating bar 7 is closely crimped in cylindrical aluminum ferrule 1, and its material is processed by the splendid raw material such as epoxy resin of insulation property, meets the length requirement (being greater than 0.7m) that High-Voltage Insulation and safety require, and guarantees operator safety.
During work, lower fixed contact 9 sides are connected with line side, to lower fixed contact 9 side joints can complete the ground connection to line side.Car switch is pulled out after cabinet, and lower fixed contact 9 side electrical verifications in cabinet, after the true no-voltage of electrical verification, are used the present invention, first earth terminal are fixed with earthing clamp 6, and hand-held insulating bar 7 pushes power connection end in lower fixed contact 9, can easily complete three-phase ground.After finishing using, take out.
Claims (3)
1. a central switch cabinet Special grounding wire, by earthing clamp (6), ground connection annealed copper wire (5), insulating bar (7) and ferrule form, it is characterized in that: insulating bar (7) top arranges cylindrical aluminum ferrule (1), insulating bar (7) is closely crimped in cylindrical aluminum ferrule (1), cylindrical aluminum ferrule (1) annular is uniform to be arranged two rankings and puts corresponding contact holes (2), contact holes (2) inside arranges elastic metallic spherical contact (8), between two contact holes (2) of each row, be fixing hole (3), the inner setting of lower fixed contact (9) projection corresponding with fixing hole (3) in central switch cabinet, cylindrical aluminum ferrule (1) bottom arranges crimping place (4) being connected with ground connection annealed copper wire (5), this Special grounding wire earth terminal is connected with earthing clamp (6), power connection end is connected in cylindrical aluminum ferrule (1) by ground connection annealed copper wire (5).
2. central switch cabinet Special grounding wire according to claim 1, is characterized in that: cylindrical aluminum ferrule (1) size adapts with lower fixed contact (9) size.
3. central switch cabinet Special grounding wire according to claim 1, is characterized in that: earthing clamp (6) is batt joint ground clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410125507.XA CN103956669A (en) | 2014-03-31 | 2014-03-31 | Ground wire special for middle switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410125507.XA CN103956669A (en) | 2014-03-31 | 2014-03-31 | Ground wire special for middle switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103956669A true CN103956669A (en) | 2014-07-30 |
Family
ID=51333917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410125507.XA Pending CN103956669A (en) | 2014-03-31 | 2014-03-31 | Ground wire special for middle switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103956669A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167683A (en) * | 2014-08-18 | 2014-11-26 | 国家电网公司 | Armor-middle-mounted type metal sealed switch cabinet grounding device |
| CN107369927A (en) * | 2017-08-10 | 2017-11-21 | 河北阡陌电器有限公司 | A kind of central switch cabinet drop bar |
| CN108767510A (en) * | 2018-05-24 | 2018-11-06 | 国网福建省电力有限公司龙岩供电公司 | New type grounding device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094809U (en) * | 1990-09-18 | 1992-01-29 | 浑江电气安装公司 | Electric distributing transformer grounding device |
| CN2891347Y (en) * | 2005-12-26 | 2007-04-18 | 张庆康 | Improved power supply plug structure |
| CN201222612Y (en) * | 2008-07-01 | 2009-04-15 | 上海琦峰验电器有限公司 | Special grounding wire for looped network cabinet |
| CN101944683A (en) * | 2010-05-27 | 2011-01-12 | 周红斌 | Electric connector with connecting latch mechanism |
| CN201891746U (en) * | 2010-11-16 | 2011-07-06 | 成都陵川特种工业有限责任公司 | Non-plug-type quick-coupled conduction connector |
| CN202210608U (en) * | 2011-08-31 | 2012-05-02 | 河南省电力公司驻马店供电公司 | Fast connecting joint special for grounding wire |
| CN202940509U (en) * | 2012-10-19 | 2013-05-15 | 河南省电力公司周口供电公司 | Dedicated grounding wire for transformer substation handcart cabinet |
| CN203339557U (en) * | 2013-06-25 | 2013-12-11 | 江苏大全长江电器股份有限公司 | Handcart type switch cabinet grounding rod |
| CN203871732U (en) * | 2014-03-31 | 2014-10-08 | 国家电网公司 | Special-purpose ground wire for built-in switch cabinet |
-
2014
- 2014-03-31 CN CN201410125507.XA patent/CN103956669A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094809U (en) * | 1990-09-18 | 1992-01-29 | 浑江电气安装公司 | Electric distributing transformer grounding device |
| CN2891347Y (en) * | 2005-12-26 | 2007-04-18 | 张庆康 | Improved power supply plug structure |
| CN201222612Y (en) * | 2008-07-01 | 2009-04-15 | 上海琦峰验电器有限公司 | Special grounding wire for looped network cabinet |
| CN101944683A (en) * | 2010-05-27 | 2011-01-12 | 周红斌 | Electric connector with connecting latch mechanism |
| CN201891746U (en) * | 2010-11-16 | 2011-07-06 | 成都陵川特种工业有限责任公司 | Non-plug-type quick-coupled conduction connector |
| CN202210608U (en) * | 2011-08-31 | 2012-05-02 | 河南省电力公司驻马店供电公司 | Fast connecting joint special for grounding wire |
| CN202940509U (en) * | 2012-10-19 | 2013-05-15 | 河南省电力公司周口供电公司 | Dedicated grounding wire for transformer substation handcart cabinet |
| CN203339557U (en) * | 2013-06-25 | 2013-12-11 | 江苏大全长江电器股份有限公司 | Handcart type switch cabinet grounding rod |
| CN203871732U (en) * | 2014-03-31 | 2014-10-08 | 国家电网公司 | Special-purpose ground wire for built-in switch cabinet |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167683A (en) * | 2014-08-18 | 2014-11-26 | 国家电网公司 | Armor-middle-mounted type metal sealed switch cabinet grounding device |
| CN107369927A (en) * | 2017-08-10 | 2017-11-21 | 河北阡陌电器有限公司 | A kind of central switch cabinet drop bar |
| CN108767510A (en) * | 2018-05-24 | 2018-11-06 | 国网福建省电力有限公司龙岩供电公司 | New type grounding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140730 |